unicorn/qemu/target/arm/cpu64.c
Lioncash 5075a0158a
target/arm: Restore Qemu's organization of coprocessor registers
These changes were mostly made in upstream unicorn for what I can guess,
was to support old versions of MSVC's compiler.

This is also a pain to maintain, since everything needs to be done
manually and can be a source of errors. It also makes it take more work
than it needs to, to backport changes from qemu.

Because of that, this change restores Qemu's organization of the
coprocessor registers.
2019-03-08 01:32:47 -05:00

409 lines
15 KiB
C

/*
* QEMU AArch64 CPU
*
* Copyright (c) 2013 Linaro Ltd
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see
* <http://www.gnu.org/licenses/gpl-2.0.html>
*/
#include "qemu/osdep.h"
#include "qapi/error.h"
#include "cpu.h"
#include "qemu-common.h"
#include "hw/arm/arm.h"
#include "sysemu/sysemu.h"
static inline void set_feature(CPUARMState *env, int feature)
{
env->features |= 1ULL << feature;
}
static inline QEMU_UNUSED_FUNC void unset_feature(CPUARMState *env, int feature)
{
env->features &= ~(1ULL << feature);
}
#ifndef CONFIG_USER_ONLY
static uint64_t a57_a53_l2ctlr_read(CPUARMState *env, const ARMCPRegInfo *ri)
{
ARMCPU *cpu = arm_env_get_cpu(env);
/* Number of cores is in [25:24]; otherwise we RAZ */
return (cpu->core_count - 1) << 24;
}
#endif
static const ARMCPRegInfo cortex_a72_a57_a53_cp_reginfo[] = {
#ifndef CONFIG_USER_ONLY
{ .name = "L2CTLR_EL1", .state = ARM_CP_STATE_AA64,
.opc0 = 3, .opc1 = 1, .crn = 11, .crm = 0, .opc2 = 2,
.access = PL1_RW, .readfn = a57_a53_l2ctlr_read,
.writefn = arm_cp_write_ignore },
{ .name = "L2CTLR",
.cp = 15, .opc1 = 1, .crn = 9, .crm = 0, .opc2 = 2,
.access = PL1_RW, .readfn = a57_a53_l2ctlr_read,
.writefn = arm_cp_write_ignore },
#endif
{ .name = "L2ECTLR_EL1", .state = ARM_CP_STATE_AA64,
.opc0 = 3, .opc1 = 1, .crn = 11, .crm = 0, .opc2 = 3,
.access = PL1_RW, .type = ARM_CP_CONST, .resetvalue = 0 },
{ .name = "L2ECTLR",
.cp = 15, .opc1 = 1, .crn = 9, .crm = 0, .opc2 = 3,
.access = PL1_RW, .type = ARM_CP_CONST, .resetvalue = 0 },
{ .name = "L2ACTLR", .state = ARM_CP_STATE_BOTH,
.opc0 = 3, .opc1 = 1, .crn = 15, .crm = 0, .opc2 = 0,
.access = PL1_RW, .type = ARM_CP_CONST, .resetvalue = 0 },
{ .name = "CPUACTLR_EL1", .state = ARM_CP_STATE_AA64,
.opc0 = 3, .opc1 = 1, .crn = 15, .crm = 2, .opc2 = 0,
.access = PL1_RW, .type = ARM_CP_CONST, .resetvalue = 0 },
{ .name = "CPUACTLR",
.cp = 15, .opc1 = 0, .crm = 15,
.access = PL1_RW, .type = ARM_CP_CONST | ARM_CP_64BIT, .resetvalue = 0 },
{ .name = "CPUECTLR_EL1", .state = ARM_CP_STATE_AA64,
.opc0 = 3, .opc1 = 1, .crn = 15, .crm = 2, .opc2 = 1,
.access = PL1_RW, .type = ARM_CP_CONST, .resetvalue = 0 },
{ .name = "CPUECTLR",
.cp = 15, .opc1 = 1, .crm = 15,
.access = PL1_RW, .type = ARM_CP_CONST | ARM_CP_64BIT, .resetvalue = 0 },
{ .name = "CPUMERRSR_EL1", .state = ARM_CP_STATE_AA64,
.opc0 = 3, .opc1 = 1, .crn = 15, .crm = 2, .opc2 = 2,
.access = PL1_RW, .type = ARM_CP_CONST, .resetvalue = 0 },
{ .name = "CPUMERRSR",
.cp = 15, .opc1 = 2, .crm = 15,
.access = PL1_RW, .type = ARM_CP_CONST | ARM_CP_64BIT, .resetvalue = 0 },
{ .name = "L2MERRSR_EL1", .state = ARM_CP_STATE_AA64,
.opc0 = 3, .opc1 = 1, .crn = 15, .crm = 2, .opc2 = 3,
.access = PL1_RW, .type = ARM_CP_CONST, .resetvalue = 0 },
{ .name = "L2MERRSR",
.cp = 15, .opc1 = 3, .crm = 15,
.access = PL1_RW, .type = ARM_CP_CONST | ARM_CP_64BIT, .resetvalue = 0 },
REGINFO_SENTINEL
};
static void aarch64_a57_initfn(struct uc_struct *uc, Object *obj, void *opaque)
{
ARMCPU *cpu = ARM_CPU(uc, obj);
set_feature(&cpu->env, ARM_FEATURE_V8);
set_feature(&cpu->env, ARM_FEATURE_VFP4);
set_feature(&cpu->env, ARM_FEATURE_NEON);
set_feature(&cpu->env, ARM_FEATURE_GENERIC_TIMER);
set_feature(&cpu->env, ARM_FEATURE_AARCH64);
set_feature(&cpu->env, ARM_FEATURE_CBAR_RO);
set_feature(&cpu->env, ARM_FEATURE_EL2);
set_feature(&cpu->env, ARM_FEATURE_EL3);
set_feature(&cpu->env, ARM_FEATURE_PMU);
cpu->kvm_target = QEMU_KVM_ARM_TARGET_CORTEX_A57;
cpu->midr = 0x411fd070;
cpu->revidr = 0x00000000;
cpu->reset_fpsid = 0x41034070;
cpu->isar.mvfr0 = 0x10110222;
cpu->isar.mvfr1 = 0x12111111;
cpu->isar.mvfr2 = 0x00000043;
cpu->ctr = 0x8444c004;
cpu->reset_sctlr = 0x00c50838;
cpu->id_pfr0 = 0x00000131;
cpu->id_pfr1 = 0x00011011;
cpu->id_dfr0 = 0x03010066;
cpu->id_afr0 = 0x00000000;
cpu->id_mmfr0 = 0x10101105;
cpu->id_mmfr1 = 0x40000000;
cpu->id_mmfr2 = 0x01260000;
cpu->id_mmfr3 = 0x02102211;
cpu->isar.id_isar0 = 0x02101110;
cpu->isar.id_isar1 = 0x13112111;
cpu->isar.id_isar2 = 0x21232042;
cpu->isar.id_isar3 = 0x01112131;
cpu->isar.id_isar4 = 0x00011142;
cpu->isar.id_isar5 = 0x00011121;
cpu->isar.id_isar6 = 0;
cpu->isar.id_aa64pfr0 = 0x00002222;
cpu->id_aa64dfr0 = 0x10305106;
cpu->isar.id_aa64isar0 = 0x00011120;
cpu->isar.id_aa64mmfr0 = 0x00001124;
cpu->dbgdidr = 0x3516d000;
cpu->clidr = 0x0a200023;
cpu->ccsidr[0] = 0x701fe00a; /* 32KB L1 dcache */
cpu->ccsidr[1] = 0x201fe012; /* 48KB L1 icache */
cpu->ccsidr[2] = 0x70ffe07a; /* 2048KB L2 cache */
cpu->dcz_blocksize = 4; /* 64 bytes */
define_arm_cp_regs(cpu, cortex_a72_a57_a53_cp_reginfo);
}
static void aarch64_a53_initfn(struct uc_struct *uc, Object *obj, void *opaque)
{
ARMCPU *cpu = ARM_CPU(uc, obj);
cpu->dtb_compatible = "arm,cortex-a53";
set_feature(&cpu->env, ARM_FEATURE_V8);
set_feature(&cpu->env, ARM_FEATURE_VFP4);
set_feature(&cpu->env, ARM_FEATURE_NEON);
set_feature(&cpu->env, ARM_FEATURE_GENERIC_TIMER);
set_feature(&cpu->env, ARM_FEATURE_AARCH64);
set_feature(&cpu->env, ARM_FEATURE_CBAR_RO);
set_feature(&cpu->env, ARM_FEATURE_EL2);
set_feature(&cpu->env, ARM_FEATURE_EL3);
set_feature(&cpu->env, ARM_FEATURE_PMU);
cpu->kvm_target = QEMU_KVM_ARM_TARGET_CORTEX_A53;
cpu->midr = 0x410fd034;
cpu->revidr = 0x00000000;
cpu->reset_fpsid = 0x41034070;
cpu->isar.mvfr0 = 0x10110222;
cpu->isar.mvfr1 = 0x12111111;
cpu->isar.mvfr2 = 0x00000043;
cpu->ctr = 0x84448004; /* L1Ip = VIPT */
cpu->reset_sctlr = 0x00c50838;
cpu->id_pfr0 = 0x00000131;
cpu->id_pfr1 = 0x00011011;
cpu->id_dfr0 = 0x03010066;
cpu->id_afr0 = 0x00000000;
cpu->id_mmfr0 = 0x10101105;
cpu->id_mmfr1 = 0x40000000;
cpu->id_mmfr2 = 0x01260000;
cpu->id_mmfr3 = 0x02102211;
cpu->isar.id_isar0 = 0x02101110;
cpu->isar.id_isar1 = 0x13112111;
cpu->isar.id_isar2 = 0x21232042;
cpu->isar.id_isar3 = 0x01112131;
cpu->isar.id_isar4 = 0x00011142;
cpu->isar.id_isar5 = 0x00011121;
cpu->isar.id_isar6 = 0;
cpu->isar.id_aa64pfr0 = 0x00002222;
cpu->id_aa64dfr0 = 0x10305106;
cpu->isar.id_aa64isar0 = 0x00011120;
cpu->isar.id_aa64mmfr0 = 0x00001122; /* 40 bit physical addr */
cpu->dbgdidr = 0x3516d000;
cpu->clidr = 0x0a200023;
cpu->ccsidr[0] = 0x700fe01a; /* 32KB L1 dcache */
cpu->ccsidr[1] = 0x201fe00a; /* 32KB L1 icache */
cpu->ccsidr[2] = 0x707fe07a; /* 1024KB L2 cache */
cpu->dcz_blocksize = 4; /* 64 bytes */
define_arm_cp_regs(cpu, cortex_a72_a57_a53_cp_reginfo);
}
static void aarch64_a72_initfn(struct uc_struct *uc, Object *obj, void *opaque)
{
ARMCPU *cpu = ARM_CPU(uc, obj);
cpu->dtb_compatible = "arm,cortex-a72";
set_feature(&cpu->env, ARM_FEATURE_V8);
set_feature(&cpu->env, ARM_FEATURE_VFP4);
set_feature(&cpu->env, ARM_FEATURE_NEON);
set_feature(&cpu->env, ARM_FEATURE_GENERIC_TIMER);
set_feature(&cpu->env, ARM_FEATURE_AARCH64);
set_feature(&cpu->env, ARM_FEATURE_CBAR_RO);
set_feature(&cpu->env, ARM_FEATURE_EL2);
set_feature(&cpu->env, ARM_FEATURE_EL3);
set_feature(&cpu->env, ARM_FEATURE_PMU);
cpu->midr = 0x410fd083;
cpu->revidr = 0x00000000;
cpu->reset_fpsid = 0x41034080;
cpu->isar.mvfr0 = 0x10110222;
cpu->isar.mvfr1 = 0x12111111;
cpu->isar.mvfr2 = 0x00000043;
cpu->ctr = 0x8444c004;
cpu->reset_sctlr = 0x00c50838;
cpu->id_pfr0 = 0x00000131;
cpu->id_pfr1 = 0x00011011;
cpu->id_dfr0 = 0x03010066;
cpu->id_afr0 = 0x00000000;
cpu->id_mmfr0 = 0x10201105;
cpu->id_mmfr1 = 0x40000000;
cpu->id_mmfr2 = 0x01260000;
cpu->id_mmfr3 = 0x02102211;
cpu->isar.id_isar0 = 0x02101110;
cpu->isar.id_isar1 = 0x13112111;
cpu->isar.id_isar2 = 0x21232042;
cpu->isar.id_isar3 = 0x01112131;
cpu->isar.id_isar4 = 0x00011142;
cpu->isar.id_isar5 = 0x00011121;
cpu->isar.id_aa64pfr0 = 0x00002222;
cpu->id_aa64dfr0 = 0x10305106;
cpu->isar.id_aa64isar0 = 0x00011120;
cpu->isar.id_aa64mmfr0 = 0x00001124;
cpu->dbgdidr = 0x3516d000;
cpu->clidr = 0x0a200023;
cpu->ccsidr[0] = 0x701fe00a; /* 32KB L1 dcache */
cpu->ccsidr[1] = 0x201fe012; /* 48KB L1 icache */
cpu->ccsidr[2] = 0x707fe07a; /* 1MB L2 cache */
cpu->dcz_blocksize = 4; /* 64 bytes */
define_arm_cp_regs(cpu, cortex_a72_a57_a53_cp_reginfo);
}
/* -cpu max: if KVM is enabled, like -cpu host (best possible with this host);
* otherwise, a CPU with as many features enabled as our emulation supports.
* The version of '-cpu max' for qemu-system-arm is defined in cpu.c;
* this only needs to handle 64 bits.
*/
static void aarch64_max_initfn(struct uc_struct *uc, Object *obj, void *opaque)
{
ARMCPU *cpu = ARM_CPU(uc, obj);
uint64_t t;
uint32_t u;
aarch64_a57_initfn(uc, obj, opaque);
t = cpu->isar.id_aa64isar0;
t = FIELD_DP64(t, ID_AA64ISAR0, AES, 2); /* AES + PMULL */
t = FIELD_DP64(t, ID_AA64ISAR0, SHA1, 1);
t = FIELD_DP64(t, ID_AA64ISAR0, SHA2, 2); /* SHA512 */
t = FIELD_DP64(t, ID_AA64ISAR0, CRC32, 1);
t = FIELD_DP64(t, ID_AA64ISAR0, ATOMIC, 2);
t = FIELD_DP64(t, ID_AA64ISAR0, RDM, 1);
t = FIELD_DP64(t, ID_AA64ISAR0, SHA3, 1);
t = FIELD_DP64(t, ID_AA64ISAR0, SM3, 1);
t = FIELD_DP64(t, ID_AA64ISAR0, SM4, 1);
t = FIELD_DP64(t, ID_AA64ISAR0, DP, 1);
t = FIELD_DP64(t, ID_AA64ISAR0, FHM, 1);
t = FIELD_DP64(t, ID_AA64ISAR0, TS, 2); /* v8.5-CondM */
cpu->isar.id_aa64isar0 = t;
t = cpu->isar.id_aa64isar1;
t = FIELD_DP64(t, ID_AA64ISAR1, JSCVT, 1);
t = FIELD_DP64(t, ID_AA64ISAR1, FCMA, 1);
t = FIELD_DP64(t, ID_AA64ISAR1, APA, 1); /* PAuth, architected only */
t = FIELD_DP64(t, ID_AA64ISAR1, API, 0);
t = FIELD_DP64(t, ID_AA64ISAR1, GPA, 1);
t = FIELD_DP64(t, ID_AA64ISAR1, GPI, 0);
t = FIELD_DP64(t, ID_AA64ISAR1, SB, 1);
t = FIELD_DP64(t, ID_AA64ISAR1, SPECRES, 1);
t = FIELD_DP64(t, ID_AA64ISAR1, FRINTTS, 1);
cpu->isar.id_aa64isar1 = t;
t = cpu->isar.id_aa64pfr0;
t = FIELD_DP64(t, ID_AA64PFR0, SVE, 1);
t = FIELD_DP64(t, ID_AA64PFR0, FP, 1);
t = FIELD_DP64(t, ID_AA64PFR0, ADVSIMD, 1);
cpu->isar.id_aa64pfr0 = t;
t = cpu->isar.id_aa64pfr1;
t = FIELD_DP64(t, ID_AA64PFR1, BT, 1);
cpu->isar.id_aa64pfr1 = t;
t = cpu->isar.id_aa64mmfr1;
t = FIELD_DP64(t, ID_AA64MMFR1, HPDS, 1); /* HPD */
t = FIELD_DP64(t, ID_AA64MMFR1, LO, 1);
cpu->isar.id_aa64mmfr1 = t;
/* Replicate the same data to the 32-bit id registers. */
u = cpu->isar.id_isar5;
u = FIELD_DP32(u, ID_ISAR5, AES, 2); /* AES + PMULL */
u = FIELD_DP32(u, ID_ISAR5, SHA1, 1);
u = FIELD_DP32(u, ID_ISAR5, SHA2, 1);
u = FIELD_DP32(u, ID_ISAR5, CRC32, 1);
u = FIELD_DP32(u, ID_ISAR5, RDM, 1);
u = FIELD_DP32(u, ID_ISAR5, VCMA, 1);
cpu->isar.id_isar5 = u;
u = cpu->isar.id_isar6;
u = FIELD_DP32(u, ID_ISAR6, JSCVT, 1);
u = FIELD_DP32(u, ID_ISAR6, DP, 1);
u = FIELD_DP32(u, ID_ISAR6, FHM, 1);
u = FIELD_DP32(u, ID_ISAR6, SB, 1);
u = FIELD_DP32(u, ID_ISAR6, SPECRES, 1);
cpu->isar.id_isar6 = u;
// Unicorn: we lie and enable them anyway
/*
* FIXME: We do not yet support ARMv8.2-fp16 for AArch32 yet,
* so do not set MVFR1.FPHP. Strictly speaking this is not legal,
* but it is also not legal to enable SVE without support for FP16,
* and enabling SVE in system mode is more useful in the short term.
*/
/* For usermode -cpu max we can use a larger and more efficient DCZ
* blocksize since we don't have to follow what the hardware does.
*/
cpu->ctr = 0x80038003; /* 32 byte I and D cacheline size, VIPT icache */
cpu->dcz_blocksize = 7; /* 512 bytes */
/* Enable all PAC keys by default. */
cpu->env.cp15.sctlr_el[1] |= SCTLR_EnIA | SCTLR_EnIB;
cpu->env.cp15.sctlr_el[1] |= SCTLR_EnDA | SCTLR_EnDB;
cpu->sve_max_vq = ARM_MAX_VQ;
}
typedef struct ARMCPUInfo {
const char *name;
void (*initfn)(struct uc_struct *uc, Object *obj, void *opaque);
void (*class_init)(struct uc_struct *uc, ObjectClass *oc, void *data);
} ARMCPUInfo;
static const ARMCPUInfo aarch64_cpus[] = {
{ "cortex-a57", aarch64_a57_initfn },
{ "cortex-a53", aarch64_a53_initfn },
{ "cortex-a72", aarch64_a72_initfn },
{ "max", aarch64_max_initfn },
{ NULL }
};
static QEMU_UNUSED_FUNC bool aarch64_cpu_get_aarch64(Object *obj, Error **errp)
{
ARMCPU *cpu = ARM_CPU(NULL, obj);
return arm_feature(&cpu->env, ARM_FEATURE_AARCH64);
}
static void aarch64_cpu_initfn(struct uc_struct *uc, Object *obj, void *opaque)
{
}
static void aarch64_cpu_finalizefn(struct uc_struct *uc, Object *obj, void *opaque)
{
}
static void aarch64_cpu_class_init(struct uc_struct *uc, ObjectClass *oc, void *data)
{
CPUClass *cc = CPU_CLASS(uc, oc);
cc->cpu_exec_interrupt = arm_cpu_exec_interrupt;
}
static void aarch64_cpu_register(struct uc_struct *uc, const ARMCPUInfo *info)
{
TypeInfo type_info = { 0 };
type_info.parent = TYPE_AARCH64_CPU;
type_info.instance_size = sizeof(ARMCPU);
type_info.instance_init = info->initfn;
type_info.class_size = sizeof(ARMCPUClass);
type_info.class_init = info->class_init;
type_info.name = g_strdup_printf("%s-" TYPE_ARM_CPU, info->name);
type_register(uc, &type_info);
g_free((void *)type_info.name);
}
void aarch64_cpu_register_types(void *opaque)
{
const ARMCPUInfo *info = aarch64_cpus;
static TypeInfo aarch64_cpu_type_info = { 0 };
aarch64_cpu_type_info.name = TYPE_AARCH64_CPU;
aarch64_cpu_type_info.parent = TYPE_ARM_CPU;
aarch64_cpu_type_info.instance_size = sizeof(ARMCPU);
aarch64_cpu_type_info.instance_init = aarch64_cpu_initfn;
aarch64_cpu_type_info.instance_finalize = aarch64_cpu_finalizefn;
aarch64_cpu_type_info.abstract = true;
aarch64_cpu_type_info.class_size = sizeof(AArch64CPUClass);
aarch64_cpu_type_info.class_init = aarch64_cpu_class_init;
type_register_static(opaque, &aarch64_cpu_type_info);
while (info->name) {
aarch64_cpu_register(opaque, info);
info++;
}
}